In the MAN network, if we use the diffServ model, we should to design the flow classification and marking it.
we can do the flow classification and marking as below:
QoS level | Marking number | Service type | Bandwidth (weight) | Packet loss mechanism |
PQ | 7 | Voice, AAA packet | 10(bandwidth) | Queue traffic shaping |
High Round Robin | 5 | IPTV service(live, multicast) | 70(weight) |
|
Middle Round Robin | 3 | IPTV service(unicast) | 10(weight) |
|
Low Round Robin | 0 | Internet service | 109weight) |
|
l The overall scheduling mode is 1 PQ queue + 3 WFQ queues.
l The packet marked as 7 enters the strict priority queue, allocates 10% of the bandwidth of the physical link, and adopts the tail drop congestion avoidance mechanism;
l The packet marked 5 enters the High Round Robin queue, assigns 70 weights, and the queue is not limited. The WRED mechanism is not used;
l The packet marked 3 enters the Middle Round Robin queue, assigns 10 weights, the queue is not fast, does not adopt the WRED mechanism;
l The packet marked 0 enters the low polling queue, assigns 10 weights, and the queue is not limited.
l The WRED mechanism is not used.
